CN107016158B - Method for inspecting electric wiring of urban rail vehicle - Google Patents

Method for inspecting electric wiring of urban rail vehicle Download PDF

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CN107016158B
CN107016158B CN201710106310.5A CN201710106310A CN107016158B CN 107016158 B CN107016158 B CN 107016158B CN 201710106310 A CN201710106310 A CN 201710106310A CN 107016158 B CN107016158 B CN 107016158B
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wiring
module
electrical wiring
potential point
potential
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CN107016158A (en
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吴英帅
丁锋
王尔为
南景宏
张松
李�雨
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CRRC Dalian Co Ltd
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CRRC Dalian Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/30—Circuit design
    • G06F30/39—Circuit design at the physical level
    • G06F30/398—Design verification or optimisation, e.g. using design rule check [DRC], layout versus schematics [LVS] or finite element methods [FEM]

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  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Design And Manufacture Of Integrated Circuits (AREA)

Abstract

The invention discloses an urban rail vehicle electrical wiring inspection method, which decomposes a system equipotential principle drawing into module equipotential principle drawings, generates module electrical wiring diagrams and electrical wiring tables, synthesizes the module electrical wiring tables into a system electrical wiring table, compares the system potential table with the system wiring table, and applies the operation function of an Excel table: firstly, whether the number of wires between every two components is more than 1 or not is judged, if yes, repeated wires exist, and the repeated wires are removed; if L is less than C-1, the potential point wiring is missed; if L is more than C-1, the potential point wiring has multiple lines; and (5) repairing a leakage line and removing multiple lines. The correctness of the final electrical wiring pattern can be effectively ensured, and the method is simple.

Description

Method for inspecting electric wiring of urban rail vehicle
Technical Field
The invention relates to the technical field of urban rail vehicles, in particular to a method for inspecting electric wiring of an urban rail vehicle.
Background
The general method is that the wiring data of an electrical schematic diagram is led into an electric auxiliary design software EPLAN, a basic wiring database is established, a local wiring table is generated through the table automatic generation function of the EPLAN software, then manual checking and comparison are carried out, the inconsistency of the line numbers, the connection positions and the equipment wiring points of all parts is found out item by item, the error reason is analyzed, and finally modification is confirmed. The patent application with the application number of 201510282815.8 discloses an urban rail vehicle wiring method based on an EPLAN platform, which comprises the steps of decomposing an electric principle general diagram of an entire train into electric principle partial diagrams of different parts through EPLAN software, establishing a general diagram principle database and a partial diagram wiring database, converting the electric principle partial diagrams into excel format line number lists after generating line number list files by utilizing templates, checking, deleting again to obtain an entire train line number list and different types of single-section vehicle line number lists, obtaining each single-section vehicle line number list through leading-in and leading-out templates, checking each different types of single-section vehicle line number list, modifying the different types of single-section vehicle line number list according to the respective line number problem list and terminal problem list to obtain different types of single-section vehicle wiring files, and wiring each vehicle. The working efficiency is improved, the workload of error wiring and debugging is reduced, and the material, time and labor cost are reduced. However, this solution is limited to the design flow level, not a verification method, and thus it is not possible to ensure the correctness of the wiring designed according to this flow.
In order to ensure the correctness of the wiring, the current commonly used wiring inspection flow is: 1. establishing a complete equipotential schematic diagram of the system; 2. each designer decomposes the equipotential schematic diagram of the own sub-pipe module from the complete equipotential schematic diagram of the system according to the design flow, and checks whether the decomposition from the complete equipotential schematic diagram of the system to the equipotential schematic diagram of the own sub-pipe module is correct (e.g., is there a missing item in the content that should belong to the module; 3. checking whether the wiring diagram from the equipotential principle diagram of the module to the module is correct or not; 4. when the wiring diagram of each module is confirmed to be correct, the workshop can be wired according to each wiring diagram respectively, and then the workshop is assembled into a system to carry out the next debugging work.
Such a method of checking the wiring pattern by the designer according to the flow has problems as follows:
1 when the previous flow has an error, the next flow will repeat the error in the previous flow, i.e. the phenomenon of one-step error and step-by-step error occurs.
2, since the flow is completed by multiple persons, missing items or repeated parts are likely to occur at the schematic diagram interface, i.e. problems occur at the module interfaces.
3 when the complete equipotential schematic diagram of the system in the process 1 is changed, the contents of the subsequent processes are likely to be out of synchronization.
4 human errors are inevitable, and even if the designer thinks more carefully, mistakes are made.
Disclosure of Invention
The invention provides an urban rail vehicle electric wiring inspection method which can ensure the correctness of electric wiring of each module.
The technical scheme adopted by the invention is that the method for inspecting the electric wiring of the urban rail vehicle is characterized by comprising the following steps:
A. establishing a system equipotential schematic diagram;
B. generating a system potential table, listing each potential point, the components connected with each potential point, the connection positions of the components and the modules to which each component belongs;
C. decomposing the system equipotential principle drawing into module equipotential principle drawings;
D. generating a module electrical wiring diagram according to the module equipotential principle diagram;
E. generating a module electrical wiring table from the module electrical wiring pattern, listing the number of wirings in the module and the positions of the components connected to the ends of the wirings A, B;
F. the module electrical wiring tables are combined into an initial system electrical wiring table, listing the wiring number, the position of the component connected to the end of each wiring A, B, and the module to which the connected component belongs.
G. Comparing the system potential table with the system wiring table, and using the operation function of the Excel table, a, firstly checking whether the number of wirings between every two components is more than 1, if so, having repeated wirings, removing the repeated wirings, and updating to generate an intermediate system electric wiring table; b. checking whether the relation between the wiring number L and the element number C is L-C-1 or not by each potential point, and if L is less than C-1, the potential point is in wiring leakage; if L is more than C-1, the potential point wiring has multiple lines; and (5) repairing a leakage line, removing a plurality of lines, and updating to generate a final system electric wiring table.
The invention has the beneficial effects that: according to the connection of the potential point, the line number, the connection point and the positions of two ends of the wiring, the final electric wiring diagram and the system equipotential principle diagram are directly checked in a contrast mode, and the accuracy of the final electric wiring diagram can be effectively guaranteed. The method is simple and convenient, factors such as intermediate links, change of participators and the like do not need to be considered, the method is used for inspection on the basis of the existing inspection method, the design can be kept good, and no errors are ensured in design. The designer can design according to work, and check through the inspection of the whole system after the design is finished, so that the hidden danger can be effectively eliminated at the later stage of the design, the designer can have a bottom in mind and can be put into the work of the next link with confidence. The method has no high requirement on the implementing personnel, can carry out inspection only by operating EXECL, and informs relevant designers to modify after finding problems. The method can be widely applied to large-scale electric control systems and programming, and has wide application.
Drawings
Fig. 1 is an equipotential schematic diagram of a system according to an embodiment of the present invention.
Fig. 2 is an equipotential diagram of each module according to an embodiment of the present invention.
Fig. 3 is an electrical wiring diagram of each module according to an embodiment of the present invention.
Fig. 4 is an electrical wiring table of each module according to an embodiment of the present invention.
FIG. 5 is a system equipotential table and an initial system electrical wiring table according to an embodiment of the present invention.
Fig. 6 is a flowchart of checking the number of wires between each two components according to the embodiment of the present invention.
Fig. 7 is an intermediate system electrical wiring table of an embodiment of the present invention.
FIG. 8 is a flowchart of the relationship between the number of potential point-by-potential point check wirings L and the number of element devices C according to the embodiment of the present invention.
Fig. 9 is a final system electrical wiring table of an embodiment of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The method for inspecting the electric wiring of the urban rail vehicle comprises the steps of firstly establishing an equipotential schematic diagram of a system shown in a figure 1; then, a system potential table shown in fig. 5 is generated according to the schematic diagram, and each potential point, the component connected to each potential point and the connection position thereof, and the module to which each component belongs are listed. The equipotential principle diagram of the system is decomposed into an equipotential principle diagram of A, B, C three modules shown in fig. 2, and the electrical wiring diagram of each module shown in fig. 3 is generated based on the equipotential principle diagram of each module. An electrical wiring table of each module shown in fig. 4 is generated from each module electrical wiring pattern, and the number of wirings in the module and the positions of components connected to ends of the respective wirings A, B are listed. The block electrical wiring tables are combined into the initial system electrical wiring table shown in fig. 5, and the wiring number, the position of the component connected to the end of each wiring A, B, and the block to which the connected component belongs are listed. Comparing the system potential table with the initial system wiring table, using the calculation function of the Excel table, according to the flow shown in fig. 6, firstly checking whether the number of wires between each two components is more than 1, wherein LN is the number of wires, A and B are the connection points at two ends of the LN, and n is the total number of lines of the wiring table. After the program was run, it was found that the number of wires between the switch contact C2 and the terminal BT3 was more than 1, and that the wires were connected by the two lead wires 8B1 and 8B3, and that there was a duplicate wire. Fig. 7 shows a table for updating and generating intermediate system electrical wiring after removing the wiring 8B3 from the electrical wiring diagram. Then, using the calculation function of Excel table, the relation between the wiring number L and the element device number C is checked for each potential point according to the flow shown in fig. 8, and it is checked whether L is C-1 and pn is the number of potential points. If L < C-1, the potential point is wired to leak; if L is more than C-1, the potential point wiring has multiple lines; and (5) repairing a leakage line and removing multiple lines. After the program is run, the following are found out: the number L of the wires of the No. 8 potential point is 2, the number C of the elements is 4, L is less than C-1, and the wires of the potential point are leaked; the number of lines L of No. 9 potential points is 4, the number of elements C is 4, L is more than C-1, and the lines of the potential points are multiple. The electrical wiring diagram is changed, the missing wiring 8B3 is compensated at the potential point No. 8, the extra wiring 9C4 is removed at the potential point No. 9, and finally the final system wiring table is updated and generated as shown in fig. 9.
The flow of checking the number of wires between each two components is described with reference to fig. 6. The process begins at block 1.0. The block 1.1 is entered, where the total number of rows n of the wiring table is entered. Block 1.2 is entered and the counter i is set to 1. Block 1.3 is entered, setting the counter m ═ i. Go to frame 1.4, judge the trunk LNiEnd connection point A ofiIs equal to the line LNm+1End connection point A ofm+1If yes, go to box 1.9, otherwise go to box 1.5. At box 1.5, the line LN is determinediIs equal to the line LNm+1End connection point B ofm+1: if yes, go to box 1.11; otherwise block 1.6 is entered. At box 1.6, it is determined whether the counter m is less than the total number of rows n of the wiring table: block 1.13 is entered if yes, and block 1.7 if not. At box 1.7, the counter i ═ i + 1. Go to box 1.8, judge counterWhether i is less than the total number of rows n: if yes, return to box 1.3; otherwise block 1.14 is entered and the procedure is ended. At box 1.9, the line LN is determinediEnd connection point B ofiIs equal to the line LNm+1End connection point B ofm+1: otherwise, entering a box 1.6; if yes, go to block 1.10 and output the line LNiAnd LNm+1Then block 1.6 is entered. At box 1.11, the line LN is determinediEnd connection point B ofiIs equal to the line LNm+1End connection point A ofm+1: otherwise, entering a box 1.6; if yes, go to block 1.12 and output the line LNiAnd LNm+1Then block 1.6 is entered. In block 1.13, the counter m is m +1, and then block 1.4 is returned.
The flow of checking the relationship between the number of wirings L and the number of element devices C on a potential point-by-potential point basis will be described with reference to fig. 8. The process begins at block 2.0. Entering a frame 2.1, and inputting the number pn of potential points. Entering box 2.2, the counter i is set to 1. Go to 2.3, calculate pniNumber of wirings L of potential pointsi. Entering Block 2.4, calculate pniNumber of elements C of potential pointi. Go to box 2.5, judge LiWhether or not it is equal to Ci-1: otherwise, entering a box 2.8; block 2.6 is entered if yes. At box 2.6, it is determined whether the counter i is less than the number of potential points pn: if yes, go to box 2.11; otherwise block 2.7 is entered and the procedure is ended. At box 2.8, judge LiWhether or not it is greater than Ci-1: if so, output "multiline" and i, then go to box 2.6; otherwise "missing lines" and i are output and block 2.6 is entered. At block 2.11, the counter i is i +1 and then returns to block 2.3.

Claims (1)

1. A method for inspecting urban rail vehicle electric wiring is characterized by comprising the following steps:
A. establishing a system equipotential schematic diagram;
B. generating a system potential table, listing each potential point, the components connected with each potential point, the connection positions of the components and the modules to which each component belongs;
C. decomposing the system equipotential principle drawing into module equipotential principle drawings;
D. generating a module electrical wiring diagram according to the module equipotential principle diagram;
E. generating a module electrical wiring table from the module electrical wiring pattern, listing the number of wirings in the module and the positions of the components connected to the ends of the wirings A, B;
F. synthesizing the module electric wiring tables into an initial system electric wiring table, listing the wiring number, the position of the component connected with the end of each wiring A, B and the module to which the connected component belongs;
G. comparing the system potential table with the system wiring table, and using the operation function of the Excel table, a, firstly checking whether the number of wirings between every two components is more than 1, if so, having repeated wirings, removing the repeated wirings, and updating to generate an intermediate system electric wiring table; b. checking whether the relation between the wiring number L and the element number C is L-C-1 or not by each potential point, and if L is less than C-1, the potential point is in wiring leakage; if L is more than C-1, the potential point wiring has multiple lines; and (5) repairing a leakage line, removing a plurality of lines, and updating to generate a final system electric wiring table.
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CN108647410A (en) * 2018-04-25 2018-10-12 珠海格力电器股份有限公司 A kind of circuit diagram method of calibration and system
CN110866306A (en) * 2019-10-23 2020-03-06 中国国家铁路集团有限公司 Train whole vehicle simulation verification method and system
CN112364191A (en) * 2020-11-27 2021-02-12 上海华明电力设备制造有限公司 Method for establishing index graph of electrical schematic diagram

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399256A (en) * 2007-09-27 2009-04-01 新光电气工业株式会社 Electronic apparatus and manufacturing method thereof
US8302045B2 (en) * 2010-09-10 2012-10-30 Hon Hai Precision Industry Co., Ltd. Electronic device and method for inspecting electrical rules of circuit boards
CN104850715A (en) * 2015-05-28 2015-08-19 中国北车集团大连机车车辆有限公司 Urban rail vehicle wiring method based on EPLAN platform

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399256A (en) * 2007-09-27 2009-04-01 新光电气工业株式会社 Electronic apparatus and manufacturing method thereof
US8302045B2 (en) * 2010-09-10 2012-10-30 Hon Hai Precision Industry Co., Ltd. Electronic device and method for inspecting electrical rules of circuit boards
CN104850715A (en) * 2015-05-28 2015-08-19 中国北车集团大连机车车辆有限公司 Urban rail vehicle wiring method based on EPLAN platform

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